JPS6423119U - - Google Patents
Info
- Publication number
- JPS6423119U JPS6423119U JP11754187U JP11754187U JPS6423119U JP S6423119 U JPS6423119 U JP S6423119U JP 11754187 U JP11754187 U JP 11754187U JP 11754187 U JP11754187 U JP 11754187U JP S6423119 U JPS6423119 U JP S6423119U
- Authority
- JP
- Japan
- Prior art keywords
- noise reduction
- detection circuit
- controlled
- circuit
- reduction circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 4
- 230000005236 sound signal Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Description
第１図は本考案一実施例のブロツク図、第２図
は従来例を示すブロツク図である。
２……ＬＰＦ、６……検波回路、８……ＶＣＡ
。
FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional example. 2...LPF, 6...Detection circuit, 8...VCA
.
Claims (1)
路とこの検波回路出力によりゲインの制御される
電圧ゲイン制御アンプとを副信号路に備えるノイ
ズリダクシヨン回路において、前記検波回路の前
段に不要成分除去用フイルタを配することを特徴
とするノイズリダクシヨン回路。 In a noise reduction circuit comprising a detection circuit for detecting the level of an audio signal to be controlled and a voltage gain control amplifier whose gain is controlled by the output of this detection circuit in a sub-signal path, a noise reduction circuit for removing unnecessary components is provided before the detection circuit. A noise reduction circuit characterized by arranging a filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11754187U JPS6423119U (en) | 1987-07-30 | 1987-07-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11754187U JPS6423119U (en) | 1987-07-30 | 1987-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6423119U true JPS6423119U (en) | 1989-02-07 |
Family
ID=31361088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11754187U Pending JPS6423119U (en) | 1987-07-30 | 1987-07-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6423119U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5528569A (en) * | 1978-08-18 | 1980-02-29 | Sanyo Electric Co Ltd | Noise reduction device |
| JPS5552643A (en) * | 1978-10-13 | 1980-04-17 | Sanyo Electric Co Ltd | Noise reduction unit |
-
1987
- 1987-07-30 JP JP11754187U patent/JPS6423119U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5528569A (en) * | 1978-08-18 | 1980-02-29 | Sanyo Electric Co Ltd | Noise reduction device |
| JPS5552643A (en) * | 1978-10-13 | 1980-04-17 | Sanyo Electric Co Ltd | Noise reduction unit |